1420 / 1542
Expected toxicity
• Urinary symptoms peaking at 2-3 weeks but persisting for
2-3 months
• 10-15 % risk of temporary catheterisation. Risk of
permanent incontinence < 1%
• Impotence in 33% (if no hormones) with response to
medication in 85%
• Side effects relate to T
1/2
of isotope (I
125
=60 days,
Pd
103
=17 days), so settle earlier with shorter T
1/2